The strongest natures, when they are influenced, submit the most unreservedly: it is perhaps a sign of their strength. But that Thoreau lost any of his own force in the process, or took on permanently any colours not natural to himself the readers of his books will certainly deny. The Transcendentalist movement, like most movements of vigour, represented the effort of one or two remarkable people to shake off the old clothes which had become uncomfortable to them and fit themselves more closely to what now appeared to them to be the realities.

"Thoreau" - Books and Portraits (1977)